By: Roger W. Sinnott November 12, This Week's Sky At a Glance. By: Alan MacRobert November 12, Save Dark Skies. By: Diana Hannikainen November 11, By: Bob King November 10, By: Camille M. Carlisle November 9, By: Alan MacRobert November 5, Astronomy and Society. By: David Dickinson November 4, Stellar Science.
They found that the star has a mass that is 98 percent that of Earth's sun. Because Sirius is a young star, it's not likely to have planets orbiting it.
Nonetheless, the data TESS collects can be used to study variabilities in star brightness and the appearance of supernovas. Join our Space Forums to keep talking space on the latest missions, night sky and more! And if you have a news tip, correction or comment, let us know at: community space.
Elizabeth Howell is a contributing writer for Space. She is the author or co-author of several books on space exploration. Elizabeth holds a Ph. She also holds a bachelor of journalism degree from Carleton University in Canada, where she began her space-writing career in Besides writing, Elizabeth teaches communications at the university and community college level, and for government training schools.
If you look, you will notice that Sirius shines less and looks less multi-coloured more strictly white when it appears higher in the sky. Many stars in the sky are intrinsically brighter than Sirius but appear dimmer because they are further away. At least three stars in the constellation of Canis Major are believed to be thousands of times more luminous than Sirius: Aludra, Wezen, and Omicron 2. Astronomers express the brightness of stars in terms of stellar magnitude.
The smaller the number, the brighter the star. The visual magnitude of Sirius is Read more about how stars are classified here.
Find Sirius with our Northern Hemisphere star wheel. Community Leaders: Notable Astronomers. By: Richard S. Wright Jr. November 9, October 19,
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